CVE-2025-55657

Modified Modified - Updated After Analysis

NULL Pointer Dereference in GPAC MP4Box via Crafted MP4 File

Publication date: 2026-06-09

Last updated on: 2026-06-14

Assigner: MITRE

Description

A NULL pointer dereference in the gf_odf_vvc_cfg_write_bs function (odf/descriptors.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

CVSS Scores

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Meta Information

Published

2026-06-09

Last Modified

2026-06-14

Generated

2026-06-30

AI Q&A

2026-06-10

EPSS Evaluated

2026-06-28

NVD

CVE-2025-55657

Affected Vendors & Products

Vendor	Product	Version / Range
gpac	gpac	2.4

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Compliance Impact

The provided information does not specify how this vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

This vulnerability is a NULL pointer dereference in the gf_odf_vvc_cfg_write_bs function within the odf/descriptors.c file of GPAC MP4Box version 2.4. It occurs when the software processes a specially crafted MP4 file, which causes the program to attempt to access memory through a NULL pointer.

This leads to a Denial of Service (DoS) condition, meaning the application can crash or become unresponsive.

Impact Analysis

The primary impact of this vulnerability is that an attacker can cause a Denial of Service (DoS) by supplying a crafted MP4 file to the vulnerable GPAC MP4Box software.

This can result in the application crashing or becoming unavailable, potentially disrupting services or workflows that rely on this software.

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